The following is a BigWebLinks.com advertisement...scroll down for more posts...Big Web Links Directory
reminds me a lot of the premium blog service that I offer here on my site. Who knows maybe they stole the idea from me! Unlike a ton of other directories out there that sort results by various factors, this site sorts them by contribution amount. The idea really worked for me here, so I'm sure it's working for them. Without a doubt the great sites end up near the top, because they're the ones willing to contribute the most. You don't make a big contribution if you have a crappy site. Just look at my Top 100 list, there are some of the best blogs around on there, especially near the top of the list. So kudos go out to Big Web Links Directory
for a great idea and good luck!